Fix labels for Requests creation

issue3427
review2161002

purchase_request.py

@@ -467,7 +467,7 @@ class CreatePurchaseRequestStart(ModelView):
 
 
 class CreatePurchaseRequest(Wizard):
-    'Create Purchase Request'
+    'Create Purchase Requests'
     __name__ = 'purchase.request.create'
     start = StateView('purchase.request.create.start',
         'stock_supply.purchase_request_create_start_view_form', [

view/purchase_request_create_start_form.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0"?>
 <!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
 this repository contains the full copyright notices and license terms. -->
-<form string="Create Purchase Request" col="2">
+<form string="Create Purchase Requests" col="2">
     <image name="tryton-dialog-information" xexpand="0" xfill="0"/>
-    <label string="Create Purchase Request?" id="create"
+    <label string="Create Purchase Requests?" id="create"
         yalign="0.0" xalign="0.0" xexpand="1"/>
 </form>